Connect the projector, make sure your laptop extends the desktop to the projector (not mirroring - Windows+P, Extended), open OLP, go to "Settings" and "Set up OpenLP", on the top of the "General" tab choose screen 2. <br>Then it should work.<br>This is also described in the user manual, press F1 while in OpenLP (or choose Help - User Manual) and read "Dual Monitor Setup".<br>